PHP 8.1 magic method support

@see https://www.php.net/manual/ja/migration81.deprecated.php

src/FilesystemAdapter.php

@@ -8,35 +8,15 @@
 use Symfony\Component\Cache\Adapter\FilesystemAdapter as OriginAdapter;
 use Symfony\Component\Cache\Marshaller\MarshallerInterface;
 
-use function call_user_func_array;
 use function func_get_args;
-use function serialize;
-use function unserialize;
 
 class FilesystemAdapter extends OriginAdapter implements Serializable
 {
-    /** @var array<int, mixed> */
-    private $args;
+    use SerializableTrait;
 
     public function __construct(string $namespace = '', int $defaultLifetime = 0, ?string $directory = null, ?MarshallerInterface $marshaller = null)
     {
         $this->args = func_get_args();
         parent::__construct($namespace, $defaultLifetime, $directory, $marshaller);
     }
-
-    /**
-     * @inheritDoc
-     */
-    public function serialize()
-    {
-        return serialize($this->args);
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function unserialize($data)
-    {
-        call_user_func_array([$this, '__construct'], unserialize($data)); // @phpstan-ignore-line
-    }
 }

src/PhpFileAdapter.php

@@ -7,35 +7,15 @@
 use Serializable;
 use Symfony\Component\Cache\Adapter\PhpFilesAdapter as OriginAdapter;
 
-use function call_user_func_array;
 use function func_get_args;
-use function serialize;
-use function unserialize;
 
 class PhpFileAdapter extends OriginAdapter implements Serializable
 {
-    /** @var array<int, mixed> */
-    private $args;
+    use SerializableTrait;
 
     public function __construct(string $namespace = '', int $defaultLifetime = 0, ?string $directory = null, bool $appendOnly = false)
     {
         $this->args = func_get_args();
         parent::__construct($namespace, $defaultLifetime, $directory, $appendOnly);
     }
-
-    /**
-     * @inheritDoc
-     */
-    public function serialize()
-    {
-        return serialize($this->args);
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function unserialize($data)
-    {
-        call_user_func_array([$this, '__construct'], unserialize($data)); // @phpstan-ignore-line
-    }
 }

src/SerializableTrait.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Ray\PsrCacheModule;
+
+use function call_user_func_array;
+use function serialize;
+use function unserialize;
+
+trait SerializableTrait
+{
+    /** @var array<int, mixed> */
+    private $args;
+
+    /**
+     * @inheritDoc
+     */
+    public function serialize()
+    {
+        return serialize($this->__serialize());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function unserialize(string $serializedData)
+    {
+        return $this->__unserialize(unserialize($serializedData));
+    }
+
+    public function __serialize(): array
+    {
+        return $this->args;
+    }
+
+    public function __unserialize(array $data): void
+    {
+        call_user_func_array([$this, '__construct'], $data); // @phpstan-ignore-line
+    }
+}